Window-lock.



G. F. HANINGTON.

WINDOW LOOK.

APPLICATION FILED 11113.22, 1911.

Patented Nov. 4, 1913.

. 1 1 I 1 I I I I I I.

lriver ztor ZZ 4 Attorneys.

W'nese COLUMBIA PLANOURAPH COUWASHINGTON, D. c.

CHARLES F. HANINGTON, 0F BOSELLE PARK, NEW JERSEY.

WINDOWLOCK.

Specification of Letters Patent.

Patented Nov. 4, 1913.

Application filed March 22, 1911. Serial No. 615,056.

To all whom it may concern:

TON, a citizen of the United States, and a resident of Roselle Park, inthe county of Union and State of New Jersey, have invented a certain newand useful Window- Look, of which the following is a specifica tion.

The object I have in view is the production of a window lock adapted tobe used with windows having two sashes, which will effectively lock thewindows in closed or open position.

Further objects are to produce a device which will be cheap and highlyeffective in use, and which cannot be operated except by a person withinthe room.

These and further objects will appear from the following specificationand ac companying drawings, considered together or separately.

In the drawings: Figure 1 is an elevation of a portion of a window framelooking toward the side, with the sashes removed. Fig. 2 is a section onthe line 22 of Fig. 1, looking in the direction of the arrow. Fig. 3 isa section on line 33, of Fig. 1, looking in the direction of the arrow.Fig. 4: is a section on the line 4-4: of Fig. 1, looking in thedirection of the arrow. Fig. 5 is a detail view of the operating shaft.Fig. 6 is a detail view of a modification.

In all of the views, like parts are designated by the samereferencecharacters.

In carrying out my invention I provide racks which are carried by thewindow sashes in a position to one side, out of the way of thecounterbalance cords. These racks engage pinions which are carried uponshafts within a box which is mounted within the frame, and behind theparting strip. These pinions have rigidly secured to them ratchets whichare engaged by dogs,

and the dogs are adapted to be disengaged, when it is desired to openone or both sashes, by cams operated by a handle within the room.

In the drawings, 1 represents the frame, 2 the upper sash, and 3 thelower sash.

4 is the parting strip. Within the frame is located a box, or casing 5.This casing lies behind the parting strip, but is provided with a groove6, within which the parting strip will lie after having been reduced inwidth at that point, as shown in Fig. .3. The casing has a cross member7 Be it known that I, CHARLES F. HANING- z in which the groove 6 ismade, and this cross member divides the casing in two parts, producingsmall chambers 8, 8, one on each side of the parting strip. The sashesare each provided with a rack 9, said racks being located adjacent tothe parting strip so that they will not interfere with the sash cord.The racks are provided with teeth, as shown. These teeth are adapted toengage with pinions, 1,0, 10, each lying within a chamber .8. Thepinions are mounted upon a shaft 11, which shaft passes through openingsin the walls of the casing, and also in the cross member 7. The pinionsare free to turn independently of each other. The pinions engage with.the racks, and are rotated as the sashes are raised or lowered. For thepurpose of preventing rotation of the pinions and thereby locking bothof the windows, each is provided with a ratchet 12, which turns with thepinion. One of these ratchets is a right-handed ratchet, and the otheris a left-handed ratchet. In other words,-the teeth on the two ratchetsincline in opposite directions. These ratchets are prevented fromturning and the windows locked by pawls 13 and 14, one lying in each ofthe chambers 8. These pawls are supported upon a shaft 15. Iprefer tomake the shaft 15 so that it will not turn within its bearings, and useit as a support or anchor for spiral springs 16, 16, which surround thesaid shaft and serve to engage the pawls 13 and ll with their ratchets.These springs are so arranged that they tend to force the ratchets intoengagement with the pawls. For the purpose of moving the ratchets awayfrom the pawls, and thereby unlock the windows, I provide a shaft 17,mounted in hearings in the casing 5, and carrying cams. These cams arein the form of lugs 18 and 19. I prefer to make both lugs upon the sameside of the shaft 17, and arrange the lugs so that, by rotating theshaft in one direction, the lug 18 will come in contact with the pawl 13and disengage it from its accompanying ratchet, and when turned in theother direction, the lug 19 will come in contact with the pawl 13 anddisengage it from its ratchet. This shaft I make short and not extendingbeyond the outer walls of the casing 5, for the purpose of permittingthe casing to be easily inserted by a carpenter, into the frame 1. Forthe purpose of turning the shaft 17, I provide an extension shaft 20,which is mounted within an opening in the frame, and engages with theend of the shaft 17 For the purpose of making a turning connectionbetween the shafts, I provide the end of the shaft 17 with a notch 21,and the end of the extension shaft 20 with a tongue 22, said tonguelying within the notch and serving as a clutch connection between theextension shaft and the shaft 17. The outer end of the shaft 20 isprovided with a handle or button 23. I prefer to make this button oval,as shown, so as to indicatethe position of the lugs 18 and 19.

It will be seen that when the shaft 17 is so turned that the two lugs 18and 19 are not in contact with the two pawls, 13 and 14, that the spiralsprings 16 will keep the latter in engagement with the ratchets. Thelower sash may thereby be lowered, and the upper sash raised, the pawlsidly slipping over the teeth of the ratchets. If, however, the sashes bemoved in the opposite direction, these pawls will engage with the teethof the ratchets and prevent rotation of them in that direction. It isapparent that if the shaft 17 be rotated in one direction and engagesthe lug 18 with the pawl 13, the latter will be disengaged from contactwith its ratchet and, consequently, the lower sash may be raised. Whenit is raised to the desired extent, the shaft 17 may then be rotated sothat the lugs 18 and 19 are in the vertical position out of engagementwith the pawls, thus locking the sash in that position. The same actionwill result if the shaft be turned in the other direction, except theupper sash will be unlocked. The casing 5 is located at the positionoccupied by the overlap of the two'window sashes. Therefore, it ispossible to utilize a single horizontal shaft 11, with pinions whichwill engage upon the racks carried by the two sashes. These racks extendupward and downward so that they pass beyond the point of engagementwith the twopinions. I thereby produce a very compact device which willengage with both window sashes and lock the same in position.

In Fig. 6, I show an arrangement in which the two cams or lugs 18 and 19are on opposite sides of the shaft 17. It is apparent, therefore, thatif the shaft be rotated in one direction or the other to about 90degrees, both pawls will be disengaged from the ratchets, and,therefore, both window sashes can be moved.

I prefer to make the lugs 18 and 19 so that they will not come incontact with the gaged from the ratchets until the shafts are turned toa considerable angle. insure the sash being locked, even if a personcarelessly fails to turn the shaft 20 so that the button 23 is in anexact upright or horizontal position, which, of course, depends upon theposition of the button on the shaft.

In accordance with the provisions of the patent statutes I havedescribed the principle of my invention, together with the apparatuswhich I now consider to represent the best embodiment thereof; but Idesire to have it understood that the apparatus shown is merelyillustrative and that the invention can be carried out in other ways.

Having now described my invention, what I claim as new and desire tosecure by Letters Patent is 1. The combination with two sashes and arack upon each sash, of a shaft, two independ ently rotatable pinions onthe shaft, said. pinions each engaging a rack, two oppositely facedratchets on the shaft, each ratchet turning with a pinion, a pawlengaging each ratchet in such a manner as to allow movement of a sash inone direction only, a sec ond shaft having lugs thereon, said lugs beingengageable with the pawls to disengage the latter from the ratchets andallow movement of the sash in the other direction, a separable keycooperating with the second shaft for rotating said shaft and meanscarried by the key for indicating the position of the lugs on the shaftwith reference to the pawls.

This will,

2. A window lock having in combination flopies of this patent may beobtained for five cents each, by addressing the Commissioner of Patents,Washington, D. G.

